At 100fps, 2% is 2fps difference, so reality is that's so negligible performance difference they are the same. The 2600 Wraith cooler, however, is extremely good for its price, free. Well worth the price over previous iterations from either amd or Intel.
Apart from that, the bug fixes and compatibility fixes inherent in the 2nd Gen Ryzens are a bonus not found in 1st gen, which have to be manually implemented, if you can find them.